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Sift

Sift

Private
Marina del Rey, CaliforniaAI, Data & Cloud Infrastructurehttps://siftstack.com

Last Round

Series B

Mar 25, 2026

Est. Valuation

$274M

Total Funding Raised

$67M

Momentum

Top 10%

of companies Caplight tracks

Company Overview

Sift operates in AI, Data & Cloud Infrastructure and is based in Marina del Rey, California. Its latest recorded funding round was a Series B round in March 2026.

Sift is an enterprise software company that provides a unified observability and telemetry platform designed to ingest, store, and analyze machine data for complex hardware systems in industries such as aerospace, robotics, and defense.

Sector

AI, Data & Cloud Infrastructure

Verticals

Data Integration, Defense Tech, Industrial Robotics, Aviation & Drones

Business Model

B2B

Customer Profile

Subscription SaaS, Usage-Based SaaS

AI Layer

Application

Historical Pricing

Historical view of private secondary pricing and transaction trends.

Pricing history

Caplight clients see full MarketPrice™ history and secondary transactions.

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Caplight Momentum Score

Proprietary index based on bid/ask volume and sentiment.

Momentum history

Caplight clients track how buyer interest and sentiment change over time.

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Sift Comparables

Compare Sift with similar companies based on industry and business-model similarity.

Sift comparables — related companies by embedding similarity
CompanySimilarityMarket Cap
Heliux
63%
Feather Robotics Inc.
49%
Arcline Systems, Inc.
37%
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Sift Funding Rounds

Historical fundraising activity

Data table
RoundDateAmount RaisedValuationInvestorsSources
Series BMar 25, 2026
Series AJun 25, 2024
SeedNov 7, 2023
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Key People

Founding team and executive leadership

Austin Spiegel

Chief Executive Officer

Executive Team

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Sift Investors

Notable investors and investment history

Sift investors
InvestorRounds
GVSeries B, Series A
Contrary CapitalSeries B
Riot VenturesSeries B, Series A, Seed
StepStone GroupSeries B
Fika VenturesSeed, Series B
CIVSeries B

Market signals

Structured signals derived from secondary market and firmographic data.

  • Oct 9, 2026

    Announced 'Sift Edge' for local telemetry data capture and viewing.

  • Jul 30, 2026

    Launched 'Sift Agents', an AI tool for hardware telemetry data investigation.

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Recent news

Latest coverage and updates

  • partners_withSep 18, 2026

    Sift Stack, Inc. and QNX partner to deliver near-real-time observability for embedded systems by streaming live telemetry from QNX-powered systems into Sift Stack, Inc., with data queryable within one second, in California on Sep 18th '26.

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Sift Filings

Explore SEC and related filing metadata, where available.

Sift filings preview — column headings only; records require access
TypeDateAmount OfferedAmount SoldFilingPagesDownload

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Frequently Asked Questions

Common questions about Sift's valuation, stock price, and market status.

Is Sift a public or private company?

Sift is a private company.

What is the current stock price of Sift?

Sift is a private company, so its shares have no public market price. Caplight tracks Sift's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.

How much is Sift worth (valuation)?

Sift's valuation is estimated at $274.0M based on funding round data.

Can I buy Sift stock?

Sift shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.

When was Sift's last funding round?

Sift's most recent funding round was Series B on March 25, 2026.

Who are the main investors in Sift?

Key investors in Sift include GV, Riot Ventures, StepStone Group.

Will Sift IPO soon?

No public IPO plans have been announced for Sift.

How can I track Sift secondary market activity?

Caplight tracks bids, offers, and trades in Sift's shares on secondary markets.

Firmographic Details

HeadquartersMarina del Rey, California
Employee Range70
Year Founded2022
Last FundingMar 25, 2026

Institutional Data Access

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